diff --git a/git/test/test_index.py b/git/test/test_index.py
index 99b35db7c..64771ef70 100644
--- a/git/test/test_index.py
+++ b/git/test/test_index.py
@@ -26,7 +26,7 @@
     GitCommandError,
     CheckoutError,
 )
-from git.compat import string_types, is_win
+from git.compat import string_types, is_win, PY3
 from git.exc import (
     HookExecutionError,
     InvalidGitRepositoryError
@@ -823,7 +823,7 @@ def test_index_bare_add(self, rw_bare_repo):
             asserted = True
         assert asserted, "Adding using a filename is not correctly asserted."
 
-    @skipIf(HIDE_WINDOWS_KNOWN_ERRORS and sys.version_info[:2] == (2, 7), r"""
+    @skipIf(HIDE_WINDOWS_KNOWN_ERRORS and not PY3, r"""
         FIXME:  File "C:\projects\gitpython\git\util.py", line 125, in to_native_path_linux
         return path.replace('\\', '/')
         UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128)""")
diff --git a/git/test/test_submodule.py b/git/test/test_submodule.py
index bbf242c0f..eb7439bdc 100644
--- a/git/test/test_submodule.py
+++ b/git/test/test_submodule.py
@@ -2,7 +2,6 @@
 # the BSD License: http://www.opensource.org/licenses/bsd-license.php
 import os
 import sys
-from unittest.case import skipIf
 
 import git
 from git.cmd import Git
@@ -22,8 +21,8 @@
     with_rw_repo
 )
 from git.test.lib import with_rw_directory
-from git.util import HIDE_WINDOWS_KNOWN_ERRORS
 from git.util import to_native_path_linux, join_path_native
+
 import os.path as osp
 
 
@@ -432,11 +431,6 @@ def test_base_rw(self, rwrepo):
     def test_base_bare(self, rwrepo):
         self._do_base_tests(rwrepo)
 
-    @skipIf(HIDE_WINDOWS_KNOWN_ERRORS and sys.version_info[:2] == (3, 5), """
-        File "C:\projects\gitpython\git\cmd.py", line 559, in execute
-        raise GitCommandNotFound(command, err)
-        git.exc.GitCommandNotFound: Cmd('git') not found due to: OSError('[WinError 6] The handle is invalid')
-        cmdline: git clone -n --shared -v C:\projects\gitpython\.git Users\appveyor\AppData\Local\Temp\1\tmplyp6kr_rnon_bare_test_root_module""")  # noqa E501
     @with_rw_repo(k_subm_current, bare=False)
     def test_root_module(self, rwrepo):
         # Can query everything without problems
diff --git a/git/test/test_tree.py b/git/test/test_tree.py
index f92598743..6b685c976 100644
--- a/git/test/test_tree.py
+++ b/git/test/test_tree.py
@@ -5,26 +5,18 @@
 # the BSD License: http://www.opensource.org/licenses/bsd-license.php
 
 from io import BytesIO
-import sys
-from unittest.case import skipIf
 
 from git import (
     Tree,
     Blob
 )
 from git.test.lib import TestBase
-from git.util import HIDE_WINDOWS_KNOWN_ERRORS
 
 import os.path as osp
 
 
 class TestTree(TestBase):
 
-    @skipIf(HIDE_WINDOWS_KNOWN_ERRORS and sys.version_info[:2] == (3, 5), """
-        File "C:\projects\gitpython\git\cmd.py", line 559, in execute
-        raise GitCommandNotFound(command, err)
-        git.exc.GitCommandNotFound: Cmd('git') not found due to: OSError('[WinError 6] The handle is invalid')
-        cmdline: git cat-file --batch-check""")
     def test_serializable(self):
         # tree at the given commit contains a submodule as well
         roottree = self.rorepo.tree('6c1faef799095f3990e9970bc2cb10aa0221cf9c')
@@ -53,11 +45,6 @@ def test_serializable(self):
             testtree._deserialize(stream)
         # END for each item in tree
 
-    @skipIf(HIDE_WINDOWS_KNOWN_ERRORS and sys.version_info[:2] == (3, 5), """
-        File "C:\projects\gitpython\git\cmd.py", line 559, in execute
-        raise GitCommandNotFound(command, err)
-        git.exc.GitCommandNotFound: Cmd('git') not found due to: OSError('[WinError 6] The handle is invalid')
-        cmdline: git cat-file --batch-check""")
     def test_traverse(self):
         root = self.rorepo.tree('0.1.6')
         num_recursive = 0